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* Use error_is_set() only when necessary (again)Markus Armbruster2014-04-251-3/+3
| | | | | | | | | | | error_is_set(&var) is the same as var != NULL, but it takes whole-program analysis to figure that out. Unnecessarily hard for optimizers, static checkers, and human readers. Commit 84d18f0 dumbed it down to obvious, but a few more have crept in since, and documentation was overlooked. Dumb these down, too. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
* docs: writing-qmp-commands.txt: update error sectionLuiz Capitulino2012-08-131-20/+27
| | | | | | | Add information about the new error format and improve the text a bit. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
* Spelling fixes in comments and documentationStefan Weil2012-01-131-1/+1
| | | | | | | Codespell detected these new spelling issues. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
* docs: Add writing-qmp-commands.txtLuiz Capitulino2011-12-061-0/+642
Explains how to write QMP commands using the QAPI. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>